Illumination system, control method, and program

Abstract

To provide an illumination system and the like capable of correcting misalignment after construction even when the lighting fixture has a directional feature.SOLUTION: An illumination system 1 includes: lighting fixtures (first lighting fixture 10 and second lighting fixture 20) each having multiple light-emitting devices 12 arranged in an array; and a control terminal 100. The control terminal 100 includes: a rotation amount acquisition unit (text box T) that acquires a rotation amount of a second reference coordinate (first area coordinate and second area coordinate) within an area where the lighting fixture emits light (first area 10A and second area 20A) with respect to a first reference coordinate on an object Q that the lighting fixture radiates; and a control unit 103 that converts the second reference coordinate into the first reference coordinate on the basis of the rotation amount.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a lighting system, a control method, and a program. [Background technology]

[0002] Patent Document 1 discloses a lighting fixture in which a plurality of light-emitting elements made of μLEDs are arranged in an array. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Special Publication No. 2021-517351 Summary of the Invention [Problem to be solved by the invention]

[0004] In recent years, the arrangement of a plurality of light emitting elements in an array for downlights has been considered. However, in the case of downlights with directional illumination, it is difficult to adjust the illumination range after installation.

[0005] Therefore, an object of the present invention is to provide a lighting system, a control method, and a program that can deal with misalignment after installation, even in the case of a lighting fixture that has a directional irradiation range. [Means for solving the problem]

[0006] A lighting system according to one aspect of the present invention comprises a lighting fixture having a plurality of light-emitting elements arranged in an array, and a control terminal, wherein the control terminal comprises a rotation amount acquisition unit that acquires an amount of rotation of a second reference coordinate within an area onto which the lighting fixture emits light relative to a first reference coordinate on an object onto which the lighting fixture emits light, and a control unit that converts the second reference coordinate into the first reference coordinate based on the amount of rotation.

[0007] A control method according to one aspect of the present invention is a method for controlling a lighting device executed by a computer, the lighting device having a plurality of light-emitting elements arranged in an array, the control method including a rotation amount acquisition step of acquiring an amount of rotation of a second reference coordinate within an area onto which the lighting device emits light relative to a first reference coordinate on an object onto which the lighting device emits light, and a conversion step of converting the second reference coordinate into the first reference coordinate based on the amount of rotation.

[0008] Moreover, one aspect of the present invention can be realized as a program for causing a computer to execute the above control method, or as a computer-readable non-transitory recording medium storing the program. Effect of the Invention

[0009] An object of the present invention is to provide a lighting system, a control method, and a program that are capable of dealing with misalignment after installation, even in the case of a lighting fixture that has a directional irradiation range. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a block diagram showing a configuration of a lighting system according to the present embodiment. [Diagram 2] FIG. 2 is a schematic diagram showing an example of a first area of ​​a first lighting device and an example of a second area of ​​a second lighting device according to the embodiment. [Diagram 3] FIG. 3 is a flowchart of a control method according to an embodiment. [Figure 4] FIG. 4 is an explanatory diagram showing a first operation screen displayed on the UI unit according to the embodiment. [Figure 5A] FIG. 5A is an explanatory diagram showing a second operation screen displayed on the UI unit according to the embodiment. [Figure 5B] FIG. 5B is a schematic diagram showing a state in which the first area according to the embodiment is entirely illuminated. [Figure 6] FIG. 6 is a schematic diagram showing the first correction area according to the embodiment. [Figure 7] FIG. 7 is a schematic diagram showing a state after the first area and the second area according to the embodiment have been corrected. [Figure 8A] FIG. 8A is an explanatory diagram showing the third operation screen G3 displayed on the UI unit 101 according to the embodiment. [Figure 8B] FIG. 8B is a schematic diagram showing a case where a part of the first correction area is illuminated in the embodiment. [Figure 9] FIG. 9 is a schematic diagram showing the first correction area according to the first modification. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] In the following, a lighting system, a control method, a program, etc. according to an embodiment of the present invention will be described in detail with reference to the drawings. Note that each of the embodiments described below shows a specific example of the present invention. Therefore, the numerical values, shapes, materials, components, arrangement and connection forms of the components, steps, order of steps, etc. shown in the following embodiments are merely examples and are not intended to limit the present invention. Therefore, among the components in the following embodiments, components that are not described in the independent claims will be described as optional components.

[0012] In addition, each figure is a schematic diagram and is not necessarily illustrated precisely. Therefore, for example, the scales in each figure do not necessarily match. In addition, in each figure, substantially the same configurations are given the same reference numerals, and duplicated explanations are omitted or simplified.

[0013] Furthermore, in this specification, terms indicating relationships between elements, terms indicating the shapes of elements such as rectangle or circle, and numerical ranges are not expressions that only express a strict meaning, but are expressions that include a substantially equivalent range, for example, a difference of about a few percent.

[0014] In addition, in this specification, ordinal numbers such as "first" and "second" do not refer to the number or order of components, unless otherwise specified, but are used for the purpose of avoiding confusion between and distinguishing between components of the same type.

[0015] (Embodiment) [Lighting system overview] First, an overview of a lighting system according to the present embodiment will be described with reference to FIG.

[0016] FIG. 1 is a block diagram showing a configuration of a lighting system 1 according to the present embodiment. As shown in FIG. 1, the lighting system 1 is a system that controls the lighting state of a lighting space. The lighting space is a space illuminated by one or more lighting fixtures, and is, for example, an indoor space such as a room in a building. A plurality of lighting fixtures are fixed to a ceiling, a wall, or the like of the lighting space. In the following description, a case in which a first lighting fixture 10 and a second lighting fixture 20 illuminate the lighting space will be illustrated as an example, but three or more lighting fixtures may illuminate the lighting space.

[0017] Lighting system 1 is capable of controlling each of first lighting fixture 10 and second lighting fixture 20 based on an operation input from a user via UI unit 101 of control terminal 100. For example, when a user wishes to illuminate a desired area, the user can set the area via UI unit 101 of control terminal 100 without specifically specifying a lighting fixture to illuminate the area.

[0018] Specifically, lighting system 1 includes a control terminal 100, a first lighting fixture 10, and a second lighting fixture 20.

[0019] The control terminal 100 is a control device that performs lighting control of the first lighting fixture 10 and the second lighting fixture 20. Lighting control includes not only turning the lights on and off, but also control related to the lighting, such as dimming, adjusting the color, and changing the lighting area (lighting range). In this embodiment, the control terminal 100 performs lighting control based on operation input from a user. The control terminal 100 is connected to each of the first lighting fixture 10 and the second lighting fixture 20 via a network so that they can communicate with each other. The communication is wireless communication or wired communication.

[0020] The control terminal 100 is, for example, a mobile terminal such as a smartphone or a tablet terminal, etc. Alternatively, the control terminal 100 may be an operation terminal fixed to a wall or the like, or a stationary computer device, etc.

[0021] As shown in FIG. 1, the control terminal 100 includes a UI (user interface) unit 101, an acquisition unit 102, and a control unit 103.

[0022] The UI unit 101 is a part that displays an operation screen that can be operated by the user and accepts operation input from the user. That is, the UI unit 101 is an example of a display unit and an example of an operation reception unit. Specifically, the UI unit 101 is a touch panel display that performs both reception and display of operation input. Alternatively, the UI unit 101 may have a display dedicated to display (another example of a display unit) and input devices such as a keyboard, a mouse, and a microphone (another example of an operation reception unit).

[0023] The acquisition unit 102 receives and acquires position information indicating a partial area in the illumination space. The acquisition unit 102 may acquire a plurality of pieces of position information of a partial area in the illumination space. In this case, the plurality of pieces of position information may be represented in a two-dimensional area or in a three-dimensional area. The acquisition unit 102 may further acquire at least one target value of the brightness in the partial area, and the size, shape, and color of the illumination area that illuminates the partial area.

[0024] The brightness is represented by, for example, illuminance. Alternatively, the brightness may be represented by luminous intensity. The color is represented by, for example, color temperature. Alternatively, the color may be represented by color information such as RGB.

[0025] The acquiring unit 102 acquires, based on a selection operation received by the UI unit 101, position information indicating a position (part of an area) selected by the user.

[0026] The control unit 103 controls the UI unit 101, the acquisition unit 102, and the first and second lighting devices 10 and 20. Specifically, the control unit 103 causes at least some of the plurality of light-emitting elements 12 (described later) of each of the first and second lighting devices 10 and 20 to emit light based on the received selection operation, thereby irradiating light onto a portion corresponding to the partial area. Furthermore, the control unit 103 may cause at least some of the plurality of light-emitting elements 12 to emit light based on a target value acquired by the acquisition unit 102. A specific control method of the control unit 103 will be described later.

[0027] The acquisition unit 102 and the control unit 103 are each realized by, for example, an LSI (Large Scale Integration) which is an integrated circuit (IC). The integrated circuit is not limited to an LSI, and may be a dedicated circuit or a general-purpose processor. For example, the acquisition unit 102 and the control unit 103 may be one or more microcontrollers. The microcontroller includes, for example, a non-volatile memory in which a program is stored, a volatile memory which is a temporary storage area for executing the program, an input / output port, a processor for executing the program, and the like. The acquisition unit 102 and the control unit 103 may also be a programmable Field Programmable Gate Array (FPGA), or a reconfigurable processor that allows connection and setting of circuit cells in the LSI. The functions executed by the acquisition unit 102 and the control unit 103 may be realized by software or hardware.

[0028] The first lighting fixture 10 and the second lighting fixture 20 are each an example of a lighting fixture having a plurality of light-emitting elements arranged in an array. The first lighting fixture 10 and the second lighting fixture 20 are, for example, downlights attached to a ceiling forming an illuminated space. Here, the first lighting fixture 10 is used as an example to explain its specific configuration, but the same applies to the second lighting fixture 20.

[0029] The first lighting device 10 has a lighting circuit 11 and an array light source 13 including a plurality of light-emitting elements 12 arranged in an array (two-dimensionally).

[0030] The lighting circuit 11 controls the light emission of each of the multiple light-emitting elements 12. The lighting circuit 11 turns on, turns off, dims, and adjusts the color of each of the multiple light-emitting elements 12 based on a control command transmitted from the control unit 103. The lighting circuit 11 is realized, for example, by an ASIC. The lighting circuit 11 supplies a PWM-modulated current to each of the multiple light-emitting elements 12. By adjusting the pulse width of the current supplied to each light-emitting element 12, the light emission intensity of each light-emitting element 12 can be changed to realize a dimming function. The dimming method is not particularly limited, and may be an amplitude modulation method, a phase modulation method, or the like.

[0031] Each of the multiple light-emitting elements 12 is a μLED. A μLED is a minute LED with a maximum width of less than 100 μm. The light-emitting element 12 may be a miniLED, a laser light-emitting element, or an organic EL element. A miniLED is an LED with a maximum width of 100 μm or more and 200 μm or less. The multiple light-emitting elements 12 may be LEDs with a maximum width of more than 200 μm.

[0032] The light-emitting element 12 emits light by a current supplied from the lighting circuit 11. The light-emitting element 12 includes, for example, a blue LED and a yellow phosphor arranged on the light-emitting side of the blue LED. The yellow phosphor is excited by a portion of the blue light emitted by the blue LED to emit yellow light. The light-emitting element 12 emits white light as a mixture of the blue light and the yellow light.

[0033] The light emitting elements 12 are mounted on a substrate. The substrate is a rigid substrate, but may be a flexible substrate. The substrate is provided with pattern wiring for electrically connecting each of the light emitting elements 12 to the lighting circuit 11.

[0034] The plurality of light emitting elements 12 are arranged in a 256×256 array in a planar region of a predetermined size on the substrate. The planar region in which the light emitting elements 12 are arranged is, for example, a rectangular region of 3 mm×3 mm. Note that the number of light emitting elements 12 and the size of the region in which they are arranged are merely examples and are not particularly limited. By arranging the plurality of light emitting elements 12 in a narrow region, it is possible to reduce the size of the projection lens (not shown) or improve the light capture efficiency.

[0035] Furthermore, the array light source 13 has a dimming function and a color adjusting function. For example, each of the plurality of light-emitting elements 12 can change the light emission intensity according to the amount of current supplied from the lighting circuit 11. Furthermore, for example, the plurality of light-emitting elements 12 may include a plurality of types of light-emitting elements that emit white light with different color temperatures. By adjusting the light emission intensities of the plurality of types of light-emitting elements, the array light source 13 can emit white light with a desired color temperature.

[0036] The light emitting elements 12 may include a red LED for emitting red light, a green LED for emitting green light, and a blue LED for emitting blue light, so that the array light source 13 can emit colored light other than white light.

[0037] [Control method] Next, a description will be given of a control method for the lighting system 1. In this control method, a first area coordinate in a first area to which the first lighting device 10 emits light and a second area coordinate in a second area to which the second lighting device 20 emits light are previously set to the same coordinate. The first area coordinate and the second area coordinate are examples of second reference coordinates.

[0038] FIG. 2 is a schematic diagram showing an example of a first area 10A of a first lighting device 10 and an example of a second area 20A of a second lighting device 20 according to the embodiment.

[0039] As shown in FIG. 2, the first area 10A and the second area 20A are arranged in different ranges of the lighting space. The first area 10A and the second area 20A may overlap, be adjacent to each other, or be separated from each other. In FIG. 2, each of the first lighting fixture 10 and the second lighting fixture 20 irradiates light onto an object Q. The object Q is a rectangular flat surface, for example, a desk top. The object Q may be a piece of furniture other than a desk, or may be a floor or a wall. In FIG. 2, the first reference coordinates, which are coordinates on the object Q, have their horizontal axis (X-axis direction) parallel to the long side of the object Q and their vertical axis (Y-axis direction) parallel to the short side of the object Q. The horizontal and vertical axes of the first reference coordinates do not have to be parallel to the long side and vertical axis of the object Q as long as they are orthogonal to each other or the angle between them can be understood even if they are not orthogonal to each other.

[0040] The first area 10A has a rectangular shape. The horizontal axis (X1 axis direction) of the first area coordinates, which are the coordinates within the first area 10A, is parallel to the long side of the first area 10A, and the vertical axis (Y1 axis direction) is parallel to the short side of the first area 10A.

[0041] The second area 20A has a rectangular shape of the same size as the first area 10A. The horizontal axis (X2 axis direction) of the second area coordinates, which are the coordinates within this second area 20A, is parallel to the long side of the second area 20A, and the vertical axis (Y2 axis direction) is parallel to the short side of the second area 20A.

[0042] When the first lighting fixture 10 and the second lighting fixture 20 are installed on a ceiling, the first area coordinates and the second area coordinates may rotate and become misaligned with respect to the first reference coordinates due to factors such as deviations in dimensions of the installation on the ceiling at the installation site, as shown in Fig. 2. In the control method according to the present disclosure, this amount of rotation is corrected in advance.

[0043] Fig. 3 is a flowchart of a control method according to an embodiment. Fig. 4 is an explanatory diagram showing a first operation screen G1 displayed on a UI unit 101 according to an embodiment. In the following description, each component included in each screen is a GUI (Graphical User Interface) object that can be operated by a user. Examples of operations performed by a user on a GUI object include a touch operation, a long press operation, a drag operation, and a pinch-in / pinch-out operation.

[0044] As shown in FIG. 3, in step S1, the control unit 103 recognizes the lighting fixture to be corrected. Specifically, the control unit 103 controls the UI unit 101 to display a first operation screen G1. In the first operation screen G1, two buttons B1 (light a, light b) representing two lighting fixtures are displayed. By performing a touch operation or the like on one button B1, one lighting fixture for which correction processing will be performed is selected. The user selects a lighting fixture for which correction processing will be performed by performing a touch operation or the like on one button B1 from among the multiple buttons B1 on the UI unit 101. For example, in FIG. 4, "light a" corresponds to the first lighting fixture 10, and "light b" corresponds to the second lighting fixture 20. Accordingly, the control unit 103 recognizes the lighting fixture for which correction processing will be performed. The selected lighting fixtures 10 and 20 may be operated to flash so that the selection can be easily visually confirmed.

[0045] In step S2, the control unit 103 recognizes the amount of rotation of the area in the lighting device. For example, when the first lighting device 10 is selected in step S1, the control unit 103 recognizes the amount of rotation of the first area coordinates of the first area 10A relative to the first reference coordinates. Note that when the second lighting device 20 is selected, the same procedure is performed.

[0046] Fig. 5A is an explanatory diagram showing a second operation screen G2 displayed on the UI unit 101 according to the embodiment. As shown in Fig. 5A, in step S2, the control unit 103 controls the UI unit 101 to display the second operation screen G2. In the second operation screen G2, a text box T in which the rotation amount is input is displayed.

[0047] At this time, the control unit 103 controls the first lighting device 10 to turn on all the light-emitting elements 12 of the first lighting device 10. That is, the first area 10A is entirely illuminated. FIG. 5B is a schematic diagram showing a state in which the first area 10A according to the embodiment is entirely illuminated. In FIG. 5B, dot hatching is applied to the non-illuminated portion. A rectangular mark M is projected onto the first area 10A. Before correction, the long side of the mark M is parallel to the long side of the first area 10A, and the short side of the mark M is parallel to the short side of the first area 10A. When the rotation amount α (rotation angle) is input in the text box T, the control unit 103 controls the first lighting device 10 to rotate the mark M in accordance with the rotation amount. The user adjusts the value in the text box T while viewing the mark M, thereby making the long side of the mark M parallel to the long side of the object Q. The value at which the long side of the mark M becomes parallel to the long side of the object Q is the amount of rotation of the first area coordinates relative to the first reference coordinates. In this way, the amount of rotation of the first area coordinates relative to the first reference coordinates is acquired by the text box T. That is, the text box T is an example of a rotation amount acquisition unit. Other examples of the rotation amount acquisition unit may be a plus / minus button, a radio button, a drop-down list, or the like. In this way, step S2 is an example of a rotation acquisition step.

[0048] In step S3, the control unit 103 converts the first area coordinates into first reference coordinates based on the acquired rotation amount. As a result, the coordinates of each light-emitting element 12 included in the first lighting device 10 are converted into those based on the first reference coordinates. Thus, step S3 is an example of a conversion step.

[0049] In step S4, the control unit 103 corrects the first area 10A. Specifically, the control unit 103 corrects the first area 10A into a rectangular shape aligned with the horizontal and vertical axes of the first reference coordinates while maintaining the aspect ratio of the first area 10A before the correction.

[0050] At this time, the control unit 103 controls the first lighting device 10 to turn on the light-emitting elements 12 of the first lighting device 10 corresponding to the corrected first area 10A1 so that only the first area after the correction (hereinafter referred to as the corrected first area 10A1) is illuminated. FIG. 6 is a schematic diagram showing the corrected first area 10A1 according to the embodiment. In FIG. 6, the first area 10A before the correction is indicated by a dashed line, and the corrected first area 10A1 is indicated by a solid line. The first area 10A before the correction and the corrected first area 10A1 have the same aspect ratio (1:4 in this embodiment).

[0051] In step S5, the control unit 103 determines whether correction has been performed for all lighting fixtures, and if correction has not been performed for all lighting fixtures, the control unit 103 proceeds to step S1, and if correction has been performed for all lighting fixtures, the control unit 103 proceeds to step S6.

[0052] Fig. 7 is a schematic diagram showing a state after the first area 10A and the second area 20A according to the embodiment are corrected. In Fig. 7, the first area 10A and the second area 20A before correction are shown by dashed lines, and the corrected first area 10A1 and the corrected second area 20A1 are shown by solid lines. The control unit 103 may correct the relative distortion of the corrected first area 10A1 and the corrected second area 20A1 to make the corrected first area 10A1 and the corrected second area 20A1 the same size.

[0053] In step S6, the control unit 103 controls the UI unit 101 to display the first operated area 51A and the second operated area having shapes corresponding to the corrected first area 10A1 and the corrected second area 20A1 (display step). Specifically, the control unit 103 controls the UI unit 101 to display the third operation screen G3.

[0054] 8A is an explanatory diagram showing a third operation screen G3 displayed on the UI unit 101 according to the embodiment. In the third operation screen G3, a first operated area 51A and an adjustment area 55A are displayed. The first operated area 51A and the second operated area can be switched by using tabs. In FIG. 8A, the first operated area 51A corresponds to the corrected first area 10A1, and the second operated area corresponds to the corrected second area 20A1.

[0055] The outline of the first operated area 51A corresponds to the outline of the corrected first area 10A1. The first operated area 51A is defined in a two-dimensional coordinate system. The two-dimensional coordinates in the first operated area 51A correspond to positions in the corrected first area 10A1.

[0056] Although not shown in the figure, when the tab is switched, the outer shape of the second operated area corresponds to the outer shape of the corrected second area 20A1. The second operated area is defined in a two-dimensional coordinate system. The two-dimensional coordinates in the second operated area correspond to the position in the corrected second area 20A1.

[0057] In step S7, the control unit 103 performs illumination corresponding to the operation on the first operated area 51A and the second operated area. For example, when the user performs a touch operation or the like on a predetermined position on the first operated area 51A, the control unit 103 controls the UI unit 101 to display the instruction illumination range H1 at the predetermined position. The shape, size, etc. of the instruction illumination range H1 may be determined, for example, by a touch operation, a long press operation, a drag operation, a pinch-in / pinch-out operation, etc. on the operated area 50A. The shape of the instruction illumination range H1 may be, for example, a circle, a polygon, a free curve, a character, a symbol, etc.

[0058] As the instructed illumination range H1 is displayed, the acquisition unit 102 acquires position information within the instructed illumination range H1. The control unit 103 obtains coordinates of the corrected first area 10A1 corresponding to the position information within the instructed illumination range H1. The control unit 103 extracts only the light-emitting element 12 corresponding to these coordinates from each light-emitting element 12 of the first lighting device 10, and causes the light-emitting element 12 to emit light. As a result, the light is irradiated onto the portion of the corrected first area 10A1 that corresponds to the instructed illumination range H1 (control step).

[0059] Fig. 8B is a schematic diagram showing a case where a part of the corrected first area 10A1 according to the embodiment is illuminated. In the first operated area 51A in Fig. 8A, a case where one circular designated illumination range H1 is arranged in the center is illustrated, but in Fig. 8B, one actual illumination range H2 is illuminated so as to correspond to this one designated illumination range H1. Note that the outlines of the corrected first area 10A1, the corrected second area 20A1, and the actual illumination range H2 may or may not be projected.

[0060] 8A is an area for adjusting the instructed lighting range H1. In the adjustment area 55A, a brightness adjustment object 551, a first shape adjustment object 552, a size adjustment object 553, and a second shape adjustment object 554 are provided.

[0061] The brightness adjustment object 551 is a GUI object for adjusting the brightness of the designated illumination range H1 and the actual illumination range H2. The brightness adjustment object 551 is a slider, but is not limited to this. The brightness adjustment object 551 may be a text box, a radio button, a drop-down list, or the like.

[0062] The first shape adjustment object 552 is a GUI object for adjusting the longitudinal direction of the designated illumination range H1 and the actual illumination range H2. The first shape adjustment object 552 is a slider, but is not limited to this. The first shape adjustment object 552 may be a text box, a radio button, a drop-down list, or the like.

[0063] The size adjustment object 553 is a GUI object for adjusting the size of the designated lighting range H1 and the actual lighting range H2. The size adjustment object 553 is a slider, but is not limited to this. The size adjustment object 553 may be a text box, a radio button, a drop-down list, or the like.

[0064] The second shape adjustment object 554 is a GUI object for adjusting the shapes of the designated lighting range H1 and the actual lighting range H2 between a circle and a square. The second shape adjustment object 554 is a slider, but is not limited to this. The second shape adjustment object 554 may be a text box, a radio button, a drop-down list, or the like.

[0065] When the user activates the instructed lighting range H1 by performing a touch operation or the like, the range switches to a state where operations can be performed on the brightness adjustment object 551, the first shape adjustment object 552, the size adjustment object 553, and the second shape adjustment object 554. When the user again performs a touch operation or the like on the instructed lighting range H1 in the active state, the range switches to a state where operations can not be performed on the brightness adjustment object 551, the first shape adjustment object 552, the size adjustment object 553, and the second shape adjustment object 554.

[0066] While viewing the actual illumination range H2, the user can adjust the actual illumination range H2 to any brightness, shape, or position by directly deforming and moving the designated illumination range H1 in the first operated area 51A and the second operated area, or by touching each object in the adjustment area 55A. In this way, the operation up to setting the designated illumination range H1 is an example of a selection operation for selecting a part of the first operated area 51A and the second operated area. This selection operation is accepted by the UI unit 101 (acceptance step). In this embodiment, the acceptance step and the control step are included in step S7.

[0067] When the user touches the designated lighting range H1 to activate it and then touches the trash can icon, the control unit 103 controls the UI unit 101 to erase the designated lighting range H1. In conjunction with this, the control unit 103 controls the first lighting fixture 10 and the second lighting fixture 20 to turn off the light-emitting elements 12 corresponding to the designated lighting range H1. The processes from step S1 to step S5 may be performed only once after the first lighting fixture 10 and the second lighting fixture 20 are installed. The items set in this process are reflected in the subsequent control method.

[0068] [Variations] Next, a modified example of the embodiment will be described. In the following description, the same parts as those in the above embodiment will be denoted by the same reference numerals, and the description thereof will be omitted in some cases.

[0069] (Variation 1) In the above embodiment, the control unit 103 corrects the first area 10A to a rectangular shape along the horizontal and vertical axes of the first reference coordinates while maintaining the aspect ratio of the first area 10A. However, when correcting the first area 10A to a rectangular shape along the horizontal and vertical axes of the first reference coordinates, the control unit 103 may correct the first area 10A to be maximized within the first area 10A. FIG. 9 is a schematic diagram showing a corrected first area 10A2 according to the first modification. In FIG. 9, the corrected first area 10A1 according to the embodiment is shown by a solid line, and the corrected first area 10A2 according to the first modification is shown by a dashed line. As shown in FIG. 9, although the aspect ratio of the corrected first area 10A2 is different from the aspect ratio of the first area 10A, the area of ​​the corrected first area 10A2 is larger than the area of ​​the corrected first area 10A1. The corrected first area 10A2 may be maximized while maintaining the aspect ratio of the first area 10A.

[0070] [summary] As described above, the lighting system 1 according to the first aspect of the present invention comprises, for example, lighting fixtures (first lighting fixture 10 and second lighting fixture 20) having a plurality of light-emitting elements 12 arranged in an array, and a control terminal 100. The control terminal 100 comprises a rotation amount acquisition unit (text box T) that acquires the amount of rotation of second reference coordinates (first area coordinates and second area coordinates) within an area (first area 10A and second area 20A) onto which the lighting fixture emits light, relative to a first reference coordinate on an object Q onto which the lighting fixture emits light, and a control unit 103 that converts the second reference coordinates into the first reference coordinates based on the amount of rotation.

[0071] According to this, the first area coordinates and the second area coordinates are converted to the first reference coordinates based on the rotation amount of the first area coordinates and the second area coordinates relative to the first reference coordinates on the target object Q, so that the coordinate conversion can address any misalignment that may occur after construction.

[0072] A lighting system according to a second aspect of the present invention is the lighting system according to the first aspect, in which the control unit 103 corrects the areas (first area 10A and second area 20A) to a rectangular shape along the horizontal and vertical axes of the first reference coordinates while maintaining the aspect ratio of the areas.

[0073] According to this, for example, in the first area 10A, the aspect ratio is maintained before and after the correction, so a sense of unity can be achieved before and after the correction. Therefore, correction that does not feel unnatural is possible.

[0074] A lighting system according to a third aspect of the present invention is the lighting system according to the first or second aspect, in which the control unit 103, when correcting the area to a rectangular shape aligned with the horizontal and vertical axes of the first reference coordinates, corrects the area so that it is maximized within the area.

[0075] As a result, for example, the corrected first area 10A1 is maximized within the pre-correction first area 10A, so that the pre-correction first area 10A can be effectively utilized as much as possible.

[0076] A lighting system according to a fourth aspect of the present invention is a lighting system according to any one of the first to third aspects, and is equipped with a plurality of the lighting devices (first lighting device 10 and second lighting device 20), and a rotation amount acquisition unit (text box T) acquires the amount of rotation for each lighting device, and a control unit 103 converts second reference coordinates (first area coordinates and second area coordinates) for each lighting device into first reference coordinates based on the amount of rotation for each lighting device.

[0077] As a result, the first area coordinates of the first lighting fixture 10 and the second area coordinates of the second lighting fixture 20 are converted into first reference coordinates, making it possible to standardize the coordinates of the first area 10A and the second area 20A.

[0078] A control method according to a fourth aspect of the present invention is a control method for lighting fixtures (first lighting fixture 10 and second lighting fixture 20) executed by a computer, wherein the lighting fixtures have a plurality of light-emitting elements 12 arranged in an array, and the control method includes a rotation amount acquisition step of acquiring a rotation amount of second reference coordinates (first area coordinates and second area coordinates) within an area (first area 10A and second area 20A) onto which the lighting fixture emits light, relative to a first reference coordinate on an object Q onto which the lighting fixture emits light, and a conversion step of converting the second reference coordinates into the first reference coordinates based on the rotation amount.

[0079] According to this, the first area coordinates and the second area coordinates are converted to the first reference coordinates based on the rotation amount of the first area coordinates and the second area coordinates relative to the first reference coordinates on the target object Q, so that the coordinate conversion can address any misalignment that may occur after construction.

[0080] A program according to a fifth aspect of the present invention is a program for causing a computer to execute the control method according to the fourth aspect.

[0081] This makes it possible to deal with any misalignments after construction, similar to the above control method.

[0082] (others) Although the lighting system, control method, and the like according to the present invention have been described based on the above-mentioned embodiment, the present invention is not limited to the above-mentioned embodiment.

[0083] For example, in the above embodiment, the first lighting fixture 10 and the second lighting fixture 20 are downlights, but they may be other types of lighting fixtures.

[0084] In the above embodiment, for example, in the first area 10A, the first area coordinates are converted into the first reference coordinates based on the acquired rotation amount, and then the first area 10A is corrected into a rectangular shape along the horizontal and vertical axes of the first reference coordinates. However, the first area coordinates may be simply converted into the first reference coordinates based on the acquired rotation amount without correcting the first area 10A.

[0085] Furthermore, for example, a rotating prism may be installed in front of the irradiation direction of array light source 13. The prism is an optical element that disperses, refracts, totally reflects, and birefringes light from array light source 13 by transmitting the light. By rotating the prism, for example, it is possible to rotate first area 10A on object Q. A driving source that rotates the prism is controlled by control unit 103. Control unit 103 may control the driving source based on the acquired rotation amount to rotate prism 103, thereby rotating first area 10A and making the second reference coordinates coincide with the first reference coordinates. The prism and the driving source may be mounted on the lighting fixture, or may be provided separately from the lighting fixture.

[0086] In the above embodiment, lighting system 1 including first lighting fixture 10 and second lighting fixture 20 has been exemplified, but a lighting system including only one lighting fixture may also be used. In this case, the control terminal acquires the amount of rotation of second reference coordinates within an area onto which one lighting fixture irradiates light relative to first reference coordinates on an object onto which the lighting fixture irradiates light, and then converts the second reference coordinates into first reference coordinates based on the amount of rotation.

[0087] In the above embodiment, the text box T is exemplified as an example of the rotation amount acquisition unit, but the rotation amount acquisition unit may be of any type as long as it can acquire the amount of rotation of the second reference coordinate in the area where the lighting fixture irradiates light relative to the first reference coordinate on the object where the lighting fixture irradiates light. Another example of the rotation acquisition unit is a camera or the like provided in the control terminal. For example, the rotation amount α can be acquired by capturing an image of the state shown in FIG. 5B with a camera.

[0088] The wireless communication between the control terminal 100 and the first and second lighting fixtures 10 and 20 may be short-range wireless communication such as ZigBee (registered trademark) or wireless LAN (Local Area Network). Alternatively, the wireless communication method (communication standard) may be communication via a wide area communication network such as the Internet. Wired communication may be performed between the control terminal 100 and the first and second lighting fixtures 10 and 20 instead of or in addition to wireless communication. Specifically, the wired communication is communication using power line communication (PLC) or a wired LAN.

[0089] In the above embodiment, the process executed by a specific processing unit may be executed by another processing unit. The order of multiple processes may be changed, or multiple processes may be executed in parallel. The allocation of the components included in the lighting system 1 to multiple devices is just an example. For example, the components included in one device may be included in another device.

[0090] For example, the processes described in the above embodiments may be realized by centralized processing using a single device (system), or may be realized by distributed processing using multiple devices. Also, the processor that executes the above programs may be single or multiple. That is, centralized processing or distributed processing may be performed.

[0091] In the above embodiment, all or part of the components such as the control unit may be configured with dedicated hardware, or may be realized by executing a software program suitable for each component. Each component may be realized by a program execution unit such as a CPU (Central Processing Unit) or a processor reading and executing a software program recorded on a recording medium such as a HDD (Hard Disk Drive) or a semiconductor memory.

[0092] Furthermore, the components such as the control unit may be configured with one or more electronic circuits. Each of the one or more electronic circuits may be a general-purpose circuit or a dedicated circuit.

[0093] The one or more electronic circuits may include, for example, a semiconductor device, an IC, or an LSI. The IC or LSI may be integrated into one chip or into multiple chips. Here, we refer to it as an IC or an LSI, but depending on the degree of integration, it may be called a system LSI, a VLSI (Very Large Scale Integration), or an ULSI (Ultra Large Scale Integration). Also, an FPGA that is programmed after the LSI is manufactured can be used for the same purpose.

[0094] Furthermore, the general or specific aspects of the present invention may be realized as a system, an apparatus, a method, an integrated circuit, or a computer program. Alternatively, the present invention may be realized as a computer-readable non-transitory recording medium such as an optical disk, a HDD, or a semiconductor memory on which the computer program is stored. Furthermore, the present invention may be realized as any combination of a system, an apparatus, a method, an integrated circuit, a computer program, and a recording medium.

[0095] According to the present invention, after the installation of the lighting fixture, the relative inclination deviation of multiple illumination areas can be corrected, and each illumination area can be treated as one illumination area as if it were connected to a single illumination area. Not only that, for display contents such as characters, figures, and specific marks displayed and illuminated in the illumination area of ​​each lighting fixture, even if the display contents were originally displayed in different illumination areas, it is possible to adjust the horizontal arrangement to eliminate the inclination of the appearance, make the characters and figures appear connected, or attempt to group them.

[0096] In addition, the present invention also includes forms obtained by applying various modifications to each embodiment that a person skilled in the art may think of, and forms realized by arbitrarily combining the components and functions of each embodiment within the scope that does not deviate from the spirit of the present invention. [Explanation of symbols]

[0097] 1. Lighting system 10 First lighting fixture 10A First Area 10A1, 10A2 Correction First Area 12 Light emitting element 20 Second lighting fixture 20A Second Area 20A1 Correction Second Area 100 Control Terminal 101 UI section 103 Control section Q Object T Text box (rotation amount acquisition part) α rotation amount

Claims

1. A lighting fixture having a plurality of light emitting elements arranged in an array; a control terminal; The control terminal a rotation amount acquisition unit that acquires a rotation amount of a second reference coordinate within an area where the lighting device emits light, relative to a first reference coordinate on an object onto which the lighting device emits light; a control unit for converting the second reference coordinates into the first reference coordinates based on the amount of rotation, Lighting system.

2. The control unit corrects the area into a rectangular shape along the horizontal and vertical axes of the first reference coordinates while maintaining an aspect ratio of the area.

10. The lighting system of claim 1.

3. The control unit corrects the area to be maximized within the area when correcting the area to a rectangular shape along the horizontal and vertical axes of the first reference coordinates.

10. The lighting system of claim 1.

4. A plurality of the lighting fixtures is provided, The rotation amount acquisition unit acquires the rotation amount for each of the lighting devices, The control unit converts the second reference coordinates for each of the lighting devices into the first reference coordinates based on the rotation amount for each of the lighting devices.

10. The lighting system of claim 1.

5. 1. A computer-implemented method for controlling a lighting fixture, comprising: The lighting device has a plurality of light emitting elements arranged in an array, The control method includes: a rotation amount acquisition step of acquiring a rotation amount of a second reference coordinate within an area where the lighting device emits light, relative to a first reference coordinate on an object onto which the lighting device emits light; and a conversion step of converting the second reference coordinates into the first reference coordinates based on the amount of rotation. Control methods.

6. A program for causing the computer to execute the control method according to claim 5.

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